38747146 has 4 divisors (see below), whose sum is σ = 58120722. Its totient is φ = 19373572.

The previous prime is 38747143. The next prime is 38747167. The reversal of 38747146 is 64174783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26574025 + 12173121 = 5155^2 + 3489^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 38747099 and 38747108.

It is not an unprimeable number, because it can be changed into a prime (38747141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9686785 + ... + 9686788.

Almost surely, 2^38747146 is an apocalyptic number.

38747146 is a deficient number, since it is larger than the sum of its proper divisors (19373576).

38747146 is a wasteful number, since it uses less digits than its factorization.

38747146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19373575.

The product of its digits is 112896, while the sum is 40.

The square root of 38747146 is about 6224.7205559768. The cubic root of 38747146 is about 338.3866646229.

The spelling of 38747146 in words is "thirty-eight million, seven hundred forty-seven thousand, one hundred forty-six".